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RE: Wood Floors and Weights

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Don’t forget that the Cd stress increase for impact loads is 2.0 for wood.  Accounting for that, I think Live Load deflection would likely be the biggest problem for a wood floor in this use.


When the gov. drops that weight and feels the floor bounce 4”, he might think twice about doing it again.


Eli Grassley

PSM Engineers






-----Original Message-----
From: Jason W. Kilgore [mailto:jkilgore(--nospam--at)]
Sent: Wednesday, July 07, 2004 8:08 AM
To: seaint(--nospam--at)
Subject: Wood Floors and Weights


To all:


What is your general gut feeling for designing a wood floor to support a “Weight Room”?  I’m assuming at least some free weights.


The proposed floor system will be a rubber mat over 2 layers of ¾” plywood (edges staggered) over 24” deep wood floor trusses. 


I’m picturing some wanna-be governor pressing a 200# bar over his head then letting it free-fall 7.5’+.


Any thoughts?



Jason Kilgore

Leigh & O'Kane, LLC

Kansas City, Missouri